Hojin Lee - Academia.edu (original) (raw)
Papers by Hojin Lee
Microwave and Optical Technology Letters, 2010
This article describes a dual-band gap-filler microstrip antenna with nearly equal gain and simil... more This article describes a dual-band gap-filler microstrip antenna with nearly equal gain and similar radiation patterns in the 2.4-GHz and 5.8-GHz ISM satellite Internet service bands. The proposed antenna has two Y-shaped slots on the microstrip patch and is fabricated on an RO4003 substrate with a dielectric constant of 3.38 and a thickness of 0.508 mm. The dimensions of the antenna are 50 mm  47.5 mm  6.5 mm, and it is fed by a coaxial cable. The measured bandwidths of the antenna are 2.376-2.492 GHz and 5.425-6.055 GHz for a voltage standing wave ratio of less than 2. At 2.42 GHz, the antenna has a broadside radiation pattern with a half-power beamwidth (HPBW) of 70 in the x-z plane and 80 in the y-z plane. At 5.75 GHz, it has a HPBW of 65 in the x-z plane and 75 in the y-z plane. The measured gain is 8.37 dB in the 2.4-GHz ISM band and 8.38 dB in the 5.8 GHz ISM band. V
VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008
ETRI Journal, 2010
the area of radar and optical instrumentation. In 2000, he joined ETRI Daejeon, Korea, where he i... more the area of radar and optical instrumentation. In 2000, he joined ETRI Daejeon, Korea, where he is currently a Special Fellow and senior member of engineering staff with the Broadcasting and Telecommunications Convergence Research Laboratory. His research interests include satellite communication systems, IMT systems, and high altitude platform stations.
電子情報通信学会技術研究報告 Ieice Technical Report 信学技報, Oct 24, 2013
電子情報通信学会技術研究報告 Sat 衛星通信, Oct 16, 2003
電子情報通信学会技術研究報告 Sat 衛星通信, Oct 25, 2007
電子情報通信学会技術研究報告 Sat 衛星通信, Oct 22, 2009
電子情報通信学会技術研究報告 Sat 衛星通信, Dec 1, 2000
IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004
ABSTRACT
Microwave and Optical Technology Letters, 2010
This article describes a dual-band gap-filler microstrip antenna with nearly equal gain and simil... more This article describes a dual-band gap-filler microstrip antenna with nearly equal gain and similar radiation patterns in the 2.4-GHz and 5.8-GHz ISM satellite Internet service bands. The proposed antenna has two Y-shaped slots on the microstrip patch and is fabricated on an RO4003 substrate with a dielectric constant of 3.38 and a thickness of 0.508 mm. The dimensions of the antenna are 50 mm  47.5 mm  6.5 mm, and it is fed by a coaxial cable. The measured bandwidths of the antenna are 2.376-2.492 GHz and 5.425-6.055 GHz for a voltage standing wave ratio of less than 2. At 2.42 GHz, the antenna has a broadside radiation pattern with a half-power beamwidth (HPBW) of 70 in the x-z plane and 80 in the y-z plane. At 5.75 GHz, it has a HPBW of 65 in the x-z plane and 75 in the y-z plane. The measured gain is 8.37 dB in the 2.4-GHz ISM band and 8.38 dB in the 5.8 GHz ISM band. V
VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008
ETRI Journal, 2010
the area of radar and optical instrumentation. In 2000, he joined ETRI Daejeon, Korea, where he i... more the area of radar and optical instrumentation. In 2000, he joined ETRI Daejeon, Korea, where he is currently a Special Fellow and senior member of engineering staff with the Broadcasting and Telecommunications Convergence Research Laboratory. His research interests include satellite communication systems, IMT systems, and high altitude platform stations.
電子情報通信学会技術研究報告 Ieice Technical Report 信学技報, Oct 24, 2013
電子情報通信学会技術研究報告 Sat 衛星通信, Oct 16, 2003
電子情報通信学会技術研究報告 Sat 衛星通信, Oct 25, 2007
電子情報通信学会技術研究報告 Sat 衛星通信, Oct 22, 2009
電子情報通信学会技術研究報告 Sat 衛星通信, Dec 1, 2000
IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004
ABSTRACT